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Flexor Tendon Repair Using a Stainless Steel Internal AnchorBiomechanical study on human cadaver tendonsFrom the Hand and Microsurgery Research Laboratory, California Pacific Medical Center, San Francisco and the Department of Materials, Science and Mineral Engineering, University of California, Berkeley, USA Correspondence: L. Gordon MD, Hand and Microsurgery Medical Group Inc., 2300 California Street, Suite 300, San Francisco, CA 94115, USA. We have developed a stainless steel internal tendon anchor that is used to strengthen a tendon repair. This study tested its use in vitro to produce a repair that can withstand the tensile strength demands of early active flexion. Fresh human cadaver flexor digitorum profundus tendons were harvested, divided, and then repaired using four different techniques: Kessler, Becker or Savage stitches, or the internal tendon anchor. The internal splint repairs demonstrated a 99–270% increase in mean maximal linear tensile strength and a 49–240% increase in mean ultimate tensile strength over the other repairs. It is hoped that this newly developed internal anchor will provide a repair that will be strong enough to allow immediate active range of motion.
Journal of Hand Surgery (British and European Volume), Vol. 23, No. 1,
37-40 (1998) |
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